Desert demons are demons that are half locust and half man. They usually only appear in more arid climates. They physically radiate the heat of their anger and are impervious to pity or benevolence. They are known to burn up once they reach tempratures of 735, 865 degrees Farenheit, in which case they are safe to approach.
They are known to become very angry when their relatives and half-beings locusts are threatened. Desert demons are spoken among the locales as fearsome beasts.
John, Groanin, and Darius meet desert demons while they were traveling in Iraq. They were only able to escape when John's perviously cast water elemental saved them.